Hardware startups in San Francisco

The Bot Company

San Francisco

The Bot Company builds household robots to give people back time, pursuing in-house AI, software and hardware. It plans to deploy millions at home before expanding, and has raised $300M, including a $150M Greenoaks-led round, valuing the co

Artifact

San Francisco

Artifact is a collaborative IDE for hardware engineers that accelerates the entire lifecycle, from design to sustainment, by building a verifiable AI copilot with an intuitive UI that mirrors how hardware is actually built. It has raised $3

Deepnight

San Francisco

Deepnight develops a low-light camera embedded with an AI model to enable robots, drones, autonomous vehicles, and head-mounted displays to operate in total darkness, delivering enhanced vision in extreme lighting conditions.

Phinity

San Francisco

Phinity creates AI training environments and distills expert engineering workflows into reinforcement learning environments across hardware, AI, mechanics, and manufacturing to enable AI to master engineering skills that reshape civilizatio

Maritime Fusion

San Francisco

Maritime Fusion is developing high-temperature superconducting tokamak fusion reactors for ships, aiming to decarbonize global shipping and deliver FOAK fusion reactors worldwide, supported by YC participation and a team with Tesla and Spac

Sorcerer

San Francisco

Sorcerer builds a global network of persistent airborne sensors to improve weather forecasting; its system is used daily by meteorologists to track extreme weather across the US and Central America, led by a team with Urban Sky and SumUp ex

Gridware

San Francisco

Gridware is a privately held technology company in San Francisco focused on protecting and enhancing the electrical grid, backed by climate-tech and Silicon Valley investors, addressing faults—especially in remote, aging infrastructure and

Meter

San Francisco

Meter is a vertically integrated infrastructure provider that builds its hardware, software, and operations to create scalable networks and reduce costs, backed by Sequoia, Sam Altman, and Lachy Groom, serving customers like Bridgewater, Ly

Partcl

San Francisco

Partcl develops the next generation of chip design automation tools powered by GPUs and AI, claiming its tools are 1000x faster than legacy options.

Enhanced Radar

San Francisco

The company develops safer aviation systems with a focus on next-generation air traffic control, aiming to advance aviation safety by delivering modern ATC solutions and defining its work in the aviation technology sector.

Bucket Robotics

San Francisco

Bucket Robotics seeks to solve the problem that 95% of industrial robots are blind, addressing robot blindness as its core mission.

Saphira AI

San Francisco

Saphira AI builds tools for safety and compliance teams in hardware companies to accelerate and streamline processes, serving startups to industry leaders in semiconductors, aerospace, and robotics, delivering faster, cheaper safety and com

Seam

San Francisco

Seam provides an API to control a broad range of IoT devices, focusing on door locks and access systems, enabling developers to orchestrate the physical world; it ships millions of devices and is backed by Tiger Global and Root VC.

BootLoop

San Francisco

BootLoop specializes in hardware and firmware reliability for advanced technologies, enabling rapid development and testing for rockets, fusion power, supersonic aircraft, and medical devices; founded by Chris Markus (SpaceX firmware/Starsh

Dalus

San Francisco

Dalus develops AI-powered software that makes hardware design feel like software development, targeting aerospace, robotics, and defense. Founded in 2024 by Eliot and Sebastian, it has revenue and completed YC W25.

Conductor Quantum

San Francisco

Conductor Quantum, based in San Francisco, develops software to enable fault-tolerant quantum computation. A small team of quantum physicists, hardware engineers, and machine learning experts envisions scalable operation of thousands to bil

Zettascale

San Francisco

Zettascale develops reconfigurable, energy-efficient AI chips for training and inference that optimize each model’s dataflow, aiming to outperform GPUs in speed and power efficiency and to save data centers billions in cooling and energy co

Astro Mechanica

San Francisco

Astro Mechanica is a fast-growing aerospace startup aiming to reinvent supersonic aircraft. Describing itself as an engineering collective, it innovates on engines, airframes, and systems untouched for over 50 years, targeting advances from

Pave Robotics

San Francisco

Pave Robotics develops robots that repair roads to improve infrastructure. Founded by Josh Kelly (CEO) and Mason Landon Smith (Chief Product Officer), it operates in the road repair robotics market as a robotics company.

Spaceium

San Francisco

Spaceium Inc, a YC S24 startup, is building space stations to refuel and repair spacecraft. It has multi-million-dollar contracts, plans a soon-to-fly demo mission, and secured one of the largest seed rounds in YC S24, signaling strong earl

Weave Robotics

San Francisco

Weave Robotics develops personal robots for home use and positions itself as the maker of the first home-built personal robots, with plans to ship its home-based robots in 2025.